Figma (https://www.figma.com https://www.figma.com) is probably a perfect fit for your use case. It's an interface design tool but it can also be used for prese

Figma (https://www.figma.com https://www.figma.com) is probably a perfect fit for your use case. It's an interface design tool but it can also be used for presentations. Benefits: * Free for individual use * Completely cross-platform (browser-based) * Has an infinite canvas * Has advanced path editing * Has a presentation mode for slides (the play button) * Supports simultaneous real-time editing if you need to work with someone else